Improvement in securing lock-spindles in safe-doors



R. YOUNG. Securing Luck-Spindles in Safe-Doors.

No. 136,353. PatentedFeb.25,1873.

Vitnesses g /m p AM PHm-urHoskAPH/c 00. N. flossmus's PROCESS) U NITED STATES PATENT OFFICE.-

RICHARD YOUNG, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN SECURING LOCK-SPINDLES IN SAFE-DOORS.

Specification forming part of'Letters Patent No. 136,353, dated February 25, 1873.

To all whom it may concern:

Be it known that I, RICHARD YOUNG, of San Francisco city and county, State of California, have invented Improvements in Safe-Locks and I do hereby declare the following description and accompanying drawing are sufficient to enable anyperson skilled in the art or science to which it most nearly appertains to make and use my said invention or improvements without further invention or experiment.

My invention relates to improvements in combination safe-locks. The object of my invention is to provide an additional security against the removal of the lock-spindle in case the parts which ordinarily serve to prevent its being either driven in or drawn out should be successfully removed, and at the same time be able to remove my spindle without taking the door apart. To accomplish this I employ one or more bolts in the body of the safe-door, which en gage with an annular groove or channel in the spindle, and prevent its being moved in either direction.

In order to more fully illustrate and explain my invention, reference is had to the accompan yin g drawing forming a part of this specification, in which- Figure 1 is a sectional view taken through the line of the spindle. Fig. 2 shows the safety bolts or plates. Fig. 3 is an interior view of the lock, the back plate being removed.

Let Arepresent a safe-lock, and B a section of the safe-door, to which the look A is secured. The spindle C passes through the safedoor and into the lock, and serves as a means of revolving the tumblers in looking or unlocking the safe. To more surely provide against the possibility of this spindle being removed, I make a recess or cavity, d, in the safe-door, upon one or both sides of the hole through which the spindle passes. This cavity should be made midway between the outer and inner faces of the door, and must commu= nicate with the hole through which the spindle passes. Into the cavity or cavities thus formed I insert a strong metal bolt, 6, the inner end of which is made concave, so that it will fit the convex surface of the annular groove in the spindle. These bolts Iinsert into the recess by way of the hole through which the spindle passes by means of a pair of pinchers, and the recess or cavity must be large enough to permit them to be pushed back out of the way, so as to admit the spindle. The spindle C has an annular groove or channel, f, cut around it in the proper position to come opposite the bolts when the spindle is inserted in the door. A screw-hole, i, I A

passes from the inside of the door into the recess d, and after the spindle has been inserted a wire can be inserted through the screwhole to move the bolt forward into the annular groove in the spindle, after Which a screw, g, is turned into the screw-hole against the bolt, so as to fix it in place.

By this means the spindle is securely bolted to the door, so that in case everything else which holds it in place is removed the bolts will prevent its being either withdrawn or driven in.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

The sliding bolt or bolts 0, in combination with the set-screws g and annular groove f in the spindle, when applied in the body of the safe-door, substantially as and for the purpose specified.

In witness whereof I hereunto set my hand and seal.

' RICHARD YOUNG. Witnesses:

JOHN L. BOONE, O. M. RICHARDSON. 

